Home / 2,113.26-2,916.30-1,229.58

Finding the Fourth Proportional to 2,113.26, 2,916.30 and 1,229.58

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Solution

The fourth proportional to 2,113.26, 2,916.30 and 1,229.58 is: 1,696.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.26 : 2,916.30 = 1,229.58 : x
  2. Step 2: Convert to fraction form
    2,113.26/2,916.30 = 1,229.58/x
  3. Step 3: Cross multiply
    2,113.26x = 2,916.30 × 1,229.58
  4. Step 4: Simplify right side
    2,113.26x = 3,585,824.15
  5. Step 5: Solve for x
    x = 3,585,824.15/2,113.26
  6. Step 6: Final answer
    x = 1,696.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.